Is it possible to import some of the multi-player maps from Rainbow Six into Ghost Recon?

If you are referring to using the maps in the original version of Ghost Recon, now you can't. Those maps need to be ported by hand (rebuilt from scratch for) using the appropriate version of 3dSM and the appropriate mod tools so they can be used in GR. Low Profile did some maps from RS for GR such as Chalet and should be available from the GR.net Downloads page.

Thanks for the reply. I was looking for the snow map from Rainbow Six. I did a search and can not find it. If anyone has access please point me in the right direction. Thanks!